Volume 15, Number 12—December 2009
Dispatch
CTX-M β-Lactamase Production and Virulence of Escherichia coli K1
Damien Dubois, Nemani V. Prasadarao, Rahul Mittal, Laurent Bret, Marie Roujou-Gris, and Richard Bonnet
Table 1
Virulence factors of Orl-1 Escherichia coli K1 strain, France
| Integrative elements* (1) | Virulence genes | Present |
|---|---|---|
| PAI III536–like | iroN | Yes |
| sfa/foc |
Yes |
|
| GimA-like |
ibeA (gimA4), ptnC (gimA1) |
Yes |
| PAI IIJ96–like | hra | Yes |
| hlyC, cnf1 |
No |
|
| PAI ICFT073–like | hlyC | No |
| aer (iucC) |
Yes |
|
| HPI-like |
fyuA, irp-2 |
Yes |
| GimB-like |
gimB |
Yes |
| pks island† |
clbA, clbK-J, clbP, clbQ |
Yes |
| Others | chuA | Yes |
| ompA | Yes | |
| hek | Yes | |
| iss | Yes | |
| malX | Yes | |
| cdtB-I to -V | No |
*PAI, pathogenicity island; HPI, high-pathogenicity island.
†Positive cytopathogen effect with transient infection of HeLa cells.
